SEARCH · Search NASA
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Design of electromechanical satellite solar paddle orientation model including conservative torques and inertia of rotation axis
Gas bearing used as low-torque support system to study spacecraft attitude control systems in simulated space environment
Analytical investigation of reentry behavior of flying wind tunnel test vehicle with some effects of threshold and torque level of roll-rate control system
Earth oblateness effect on torque experienced in nonuniform geogravitational field by satellite with unequal principal moments of inertia
Combined effect of aerodynamic and gravity torques on stability of motion of passive satellites investigated by Liapunov direct method
Time dependent orientation of body fixed coordinate system relative to stars for spinning rigid torque-free body
Electrodynamic forces and torques on charged bodies moving through rarefied and partially ionized earth magnetosphere and upper atmosphere
Fast-response coil drive circuit, for electromagnetic torque motors, reduces the inductive coil time constant with a minimum of circuit sophistication. The low-cost modulator servoamplifier is used with a compatible preamplifier stage which provides the servo-loop function of summing, adjustable gain and compensation.
Design of torque motor controller, and operation of breadboard control circuit
Friction torque of ball bearings in vacuum to determine lubricating capability of polytetrafluoroethylene-composition retainer materials
Theoretical approach to determination of magnetic torques on orbiting spacecraft by near-field measurement
Angular dependence of reflected solar radiation from Sahara measured by TIROS 7 in torquing maneuver
Disturbance torque effects on cruise mode operations of Mariner 4 and Mariner 5
Torqued two axis gimbaled boom actuator satellite attitude control
Aerodynamic and gravitational torque effects on asymmetric gravity stabilized satellite
Contact conformity effects on spinning torque and friction coefficient in angular contact ball bearings from lubricated and unlubricated tests
Computer printouts of torque limits and limit cycles affecting Mariner 4 and 5 spacecraft at selected positions
Electric torque analysis as part of research on Electrically Supported Vacuum Gyroscope /ESVG/